Strainer for filters.



R. G.-GREER.

STBAINEB FOR FILTERS. v APPLIOATIONIILBD APR. 5, 1007.

Patented Dec. 29, 1908.

. attached to the proper UNITED STATES PATENT OFFICE.

ROLAND C. GREER, OF CHICAGO, ILLINOIS.

s'rnamn'n non FILTERS.

Specification 01' Letters Patent.

' Patented Dec. 29, 1908.

Application filed April 5,1907. Serial No. 356,698.

strain to which it is subjected by the filter I bed superimposed thereon, while also provid ing an extensive straining or trap mg capacity, as will be hereinafter more Fully described.

Figure 1 represents a side elevation of a strainer embodying my invention. Fig. 2 represents a central vertical section thereof. Fig. 3 represents a top or plan view thereof.

Similar letters of reference indicate corresponding parts in the figures.

Referring to the drawings, A designates th body of the strainer, the same being hollow and com osed of the side wall B, the top 0, bottom attaching neck E and narrow slits or ker'fs F in said side wall.

The body is primarily integral, preferably constructed by casting, and the slits or kerfs are formed in the side wall B by any suitable im lement.

he neck E is screw-threaded so as to be pipe of a filter, it being seen that the body is strong and durable and not liable to be crushed by the weight of the filter bed superimposed on the top of the same, said to being comparatively solid, and being furt ermore curved upwardly or dome-shaped and so possessing increased strength. Furthermore, the slits or kerfs extend the entire length of the side wall B,

and provide extensive capacity for straining or trapping purposes, thus effectually preventing the material of the filter bed and foreign substances from entering the body A, and clogging the latter, water or fluid may readily ass through said side wall and enter the body of the strainer, from whence it is directed by the neck E to a conveying or discharge pipe with which the strainer is connected.

The u per end of the threaded neck E preferab y has formed thereon a wrenchhold 1n the form of an integral, nut G, for the application'of a wrench in applying the strainer to the filter pipe. 5

I claim:

1. Astrainer of the character described, consisting of a hollow body formed of an imperforate top, vertically s otted sides, and a centrally apertured bottom provided 'with a threaded boss for attachment to a supply pipe, substantially as described.

' 2 A'strainer of the character described, consisting. of a hollow bod formed of an imperforate top, vertically s otted sides, and a centrally apertured bottom r'ovided with an integral nut and threaded oss for attachment to a supply pipe, substantially as described.

3. A strainer of the character described, consisting of an integral hollow cylindrical body formed of a dome-shaped imperforate top, vertically slotted sides, and a centrally apertured bottom provided with a nut and a depending threaded boss for attachment to a supply pipe, substantially as described.

ROLAND C. GREER.

Witnesses:

SAMUEL'N. POND, FREDERICK O. Goonwm.

whereby the filtered, 

